This finished high-current waterproof battery harness adopts standard M23×1 metric circular connector with 90° elbow right-angle outgoing structure, solving the space limitation of side-mounted battery charging ports and avoiding sharp wire bending damage. The internal contact layout is 2 large-diameter power pins (6mm² flat copper wire matched for 30–50A fast charging) + 4 small signal pins for BMS temperature, balance and communication signal transmission, realizing power + signal integrated one-line connection.
The connector shell is made of modified anti-UV PA66 plastic (metal shield shell optional), double silicone rubber sealing rings at the mating surface and cable inlet to reach IP67 full dust and water resistance, suitable for outdoor rainy, muddy and humid vehicle working environments. Threaded screw locking design with anti-slip knurling, manual tightening without tools, strong pull resistance to prevent loose contact caused by vehicle vibration and bumping.
High-current contacts use thickened brass with double-layer gold plating, ultra-low contact resistance and low heat generation under continuous 50A full load; matched multi-core composite rubber power cable, 6mm² flat thick copper power lines + thin flat 4-core signal lines, flexible after thousands of bending cycles, resistant to low temperature, engine oil and outdoor aging. All cable transition joints are reinforced with heat-shrink tubing strain relief to prevent wire breakage at bending positions.
Every finished harness passes strict factory inspection: high-current load aging test, waterproof immersion test, terminal pull-out force test, vibration resistance test and high voltage withstand test. We provide single elbow plug finished cables, male-female inline extension harness and panel mount conversion wiring OEM solutions for lithium battery factory, new energy vehicle and agricultural equipment manufacturers.
Specifications
| Connector Model | M23 circular elbow screw-lock waterproof aviation plug |
| Rated Working Current | Single power pin max 50A continuous |
| Operating Temperature Range | -40℃ to +105℃ |
| Sealing Material | Imported silicone rubber double sealing rings |
| Locking Structure | External knurled thread screw manual locking |
| Customizable Items | Cable length,wire cross-section,pin assignment |
Advantages
90° elbow space-saving design: Right-angle outgoing avoids vertical wire dead angle, perfectly fits side panel mounting of electric vehicle battery packs, reduces installation space occupation and wire bending fatigue fracture risk.
Mixed 6 flat core power +4 flat signal integrated layout: Two thick 6mm² flat copper wires support 30–50A fast charging high current; four flat signal cores transmit BMS balance, temperature and communication signals at the same time, simplify wiring layout of battery packs.
IP67 dual-layer full waterproof sealing: Double silicone gaskets block rainwater, mud and dust intrusion, safe for outdoor all-weather charging of e-bikes and energy storage batteries.
High-current gold-plated thick brass contacts: Low heating under long-term 50A load, no overheating melting risk during fast charging; anti-oxidation gold plating avoids poor contact after long-term vehicle vibration.
Anti-UV & all-weather resistant cable: TPU outer sheath resists sunlight aging, low temperature embrittlement and agricultural machinery oil pollution, suitable for outdoor vehicle long-term use.
Screw locking anti-drop structure: Large knurled thread surface for easy hand tightening, strong axial pull resistance, effectively eliminate loose charging failure caused by driving bump vibration.
Application
Two-Wheel Electric Vehicle Lithium Battery Systems:Electric scooter / e-bike built-in battery pack charging extension harness, delivery electric vehicle large-capacity lithium battery fast charging cable, shared electric vehicle waterproof power signal integrated wire
Energy Storage & Portable Power Station Equipment:Small household energy storage battery waterproof charging wire, portable outdoor power station power communication harness, solar integrated storage battery connecting cable
Agricultural & Garden Machinery:Electric lawn mower lithium battery charging cable, agricultural sprayer power signal integrated wire, electric irrigation equipment waterproof battery harness
Light New Energy Vehicles & Logistics Equipment:Low-speed electric vehicle auxiliary battery connection wire, electric pallet truck lithium battery charging harness, outdoor mobile inspection equipment power cable
FAQ
Q1: What current can this M23 elbow harness support?
A: The two 6mm² flat power cores match thickened large current contacts, stable continuous 30–50A charging current, compatible with mainstream 48V/60V/72V lithium battery fast charging systems.
Q2: What does 6 flat head +4 flat wire mean?
A: Internal mixed core layout: 2 pieces of 6mm² flat thick power wires (total 6 flat power cores) + 4 pieces of flat thin signal wires for BMS monitoring signal transmission, realize power + signal one cable integration.
Q3: Is the M23 elbow connector completely waterproof outdoors?
A: Reach IP67 protection grade, can resist heavy rain splashing and temporary shallow water immersion, suitable for outdoor vehicle long-term charging use, not for long-term underwater submersion.
Q4: Can I customize straight plug or adjust wire length?
A: Support full customization: switch between elbow / straight M23 plug, arbitrary cable length from 0.3m to 20m, also adjust power wire cross-section for higher current demand.
Q5: Can this harness be used for battery pack BMS signal transmission?
A: Yes, the independent 4 flat signal cores are specially reserved for battery balance, temperature detection and communication signals, isolated from power lines to avoid current interference.